dailysudoku.com

Please sir,

I have been trying to follow your solution. But I am not able to follow your work from puzzle 1 to puzzle 2.

Specifically,
row 1 column 5 (-3); why?

puzzle 2 to puzzle 3.
ro ...

+---------------+---------------+--------------+
| 9 137 6 | 2 17 5 | 8 13 4 |
| 2 8 14 | 39 1479 349 | 6 5 179 |
| 347 5 134 | 6 1479 8 | 379 2 1379 | ...

.

Thank you. It is amazing how easy it is to get rapped up in looking for a complex chain, when the simplest solution is staring one in the face.

Ema Nymton
~@:o?
.

.

+-------------+-----------+--------------+
| 17 4 3 | 9 8 67 | 2 5 167 |
| 6 789 1789 | 4 2 5 | 138 38 178 |
| 2 578 578 | 37 36 1 | 68 9 4 |
+-------------+-- ...

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Thank you. Impressive solution.

Ema Nymton
~ @ : o ?
.

.

Is this solvable?

+------------+----------+----------+
| 9 8 46 | 3 7 5 | 1 46 2 |
| 2 7 146 | 69 14 8 | 5 3 49 |
| 3 5 146 | 69 14 2 | 8 469 7 |
+------------+------ ...

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Hi 'Ema': To get you going again- theres a sole candidate number in box
5 and a hidden pair in column 2 and the rest is sorted if you look
at column 9 and box 9 very closely........

Thank yo ...

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Totally stumped.
'Hint' indicated column 2 row 8 = 1. Why?

+--------------+---------------+---------------+
| 4 689 689 | 2 16 5 | 3 18 7 |
| 1 3 5 | 7 9 ...

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Thank you all. This is one deviously delicious puzzle.

Ema Nymton
~@:o?
.

* r4C8 = 8; how?

What steps clear the cell to = 8?

Ema,

I guess you mean r5c8. Take an extremely close look at c7.

Sorry, you are right. I meant r5c8.

No matter how close I look at c7 ...

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Sorry, I can't even get there from here.

+---------------+-----------------+-----------------+
| 1 5 469 | 3 49 7 | 269 29 8 |
| 469 3 4689 | 248 24589 24589 | 1 ...

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Bring your "A" game.

One is sorely challenged to find the subtle interlocking play of this puzzle. Well done.

I was totally stopped until I turned here for help. Thank you all. ...

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Also a sashimi X wing on 5 does the trick.
A two stepper ... X wing on 6 followed by a BUG+1

For those of us who need a show and tell session:

+----------+-----------+---------+
| 5 ...

Ema,

In your grid, solve 7 in R3. The puzzle is done.

If you really want to solve R1C2 first, use the skyscraper / kite on 7 in R5 and C6.

Keith

doh. Thank you. A case of being so close ...

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+------------+------------+-------------+
| 5 67* 8 | 1 4 27 | 69 279 3 |
| 1 3467 37 | 259 69 25 | 8 247 47 |
| 9 246 26 | 3 67 8 | 46 1 5 |
+------------+----- ...

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The solution "XY-Wing 19 18 89 pivoted in r5c1 solves it by setting r9c9<>9." not withstanding, a question comes up.

+-------------+----------+--------------+
| 4 8 1 ...

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I was able to solve this puzzle by straight forward logic. I don't understand W-Wings , XYZ Wings and Pivots etc. Where can I find out about these please :?:

Many places are helpful. One powe ...

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Being a visual learner that I am, after the basics I found myself with this puzzle:

+------------+-----------------+------------+
| 5 3489 39 | 4689 2689 2468 | 468 1 7 |
| 6 248 24 ...

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Color me dense.

Basic

+--------------+----------------+----------+
| 89 789 6 | 4 27 5 | 1 28 3 |
| 2 1 4 | 68 68 3 | 9 7 5 |
| 5 378 378 | 27 9 ...

.

+--------------+--------------+--------+
| 17 6 9 | 8 17 5 | 2 3 4 |
| 1478 137 2 | 13479 147 47 | 6 5 89 |
| 458 35 348 | 349 2 6 | 7 1 89 |
+--------------+----- ...